Display screen or portion thereof with a graphical user interface



FIG. 1 is a front view of a display screen or portion thereof with agraphical user interface showing a first image of our new design.

FIG. 2 is a front view of a display screen or portion thereof with agraphical user interface showing a second image of our new design.

FIG. 3 is a front view of a display screen or portion thereof with agraphical user interface showing a third image of our new design.

FIG. 4 is a front view of a display screen or portion thereof with agraphical user interface showing a fourth image of our new design.

FIG. 5 is a front view of a display screen or portion thereof with agraphical user interface showing a fifth image of our new design.

FIG. 6 is a front view of a display screen or portion thereof with agraphical user interface showing a sixth image of our new design; and,

FIG. 7 is a front view of a display screen or portion thereof withgraphical user interface showing a seventh image of our new design.

In the inventive design of the graphical user interface, the display ofthe images transition sequentially from the first image through to theseventh image shown in FIGS. 1-7. The process or time for transitionfrom one image to another image forms no part of the claimed design.

The outermost uneven-length broken lines of FIGS. 1-7 illustrate adisplay screen or portion thereof, in an environment of use of thedesign with an electronic device, and form no part of the claimeddesign. The even-length broken lines within the display screen orportion thereof in FIGS. 1-7 illustrate portions of the graphical userinterface, and form no part of the claimed design.

CLAIM The ornamental design for a display screen or portion thereof witha graphical user interface, as shown and described.